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Finding the Third Proportional to 9,938,298 and 21,293,778

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Solution

The third proportional to 9,938,298 and 21,293,778 is: 45,624,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938,298 : 21,293,778 = 21,293,778 : x
  2. Step 2: Convert to fraction form
    9,938,298/21,293,778 = 21,293,778/x
  3. Step 3: Cross multiply
    9,938,298x = 21,293,778 × 21,293,778
  4. Step 4: Simplify right side
    9,938,298x = 453,424,981,513,284
  5. Step 5: Solve for x
    x = 453,424,981,513,284/9,938,298
  6. Step 6: Final answer
    x = 45,624,007.40

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.